Spool



FIG. 1 is a perspective view of a spool.

FIG. 2 is a top view of the spool shown in FIG. 1.

FIG. 3 is a bottom view of the spool shown in FIG. 1.

FIG. 4 is a first side view of the spool shown in FIG. 1.

FIG. 5 is a second side view of the spool shown in FIG. 1.

FIG. 6 is a third side view of the spool shown in FIG. 1; and,

FIG. 7 is a fourth side view of the spool shown in FIG. 1.

The elements shown in broken lines are included for the purpose of illustrating environment and form no part of the claimed design. The broken lines having unequal line segments illustrate the boundary of the claimed design. 

CLAIM We claim the ornamental design for a spool, as shown and described. 